Concentrix Salesforce Developer Interview Questions Following are the interview questions asked at Concentrix for a Salesforce Developer role with 3+ years of experience.
What's Covered
Topics covered in this interview.
All Interview Questions
Every question asked in this interview, listed one by one.
More Salesforce Interview Questions to Practice
The extra questions below are not from this interview. They cover the same topics and are commonly asked in Salesforce developer interviews, so they make good practice before your own round.
Apex questions
- What is Database.Stateful in Batch Apex?
- How do you read values from custom metadata types in Apex?
- What is the difference between static and instance variables in Apex?
- What is the difference between with sharing, without sharing and inherited sharing?
- What are governor limits? Name five important ones.
Lightning Web Components questions
- What is shadow DOM, and what is synthetic shadow in LWC?
- How do you write Jest tests for a Lightning web component?
- How can a parent component call a public method of a child component?
- What are the main differences between Aura components and LWC?
Triggers questions
- Can you make a callout from a trigger? How?
- How do you bulkify a trigger?
- Why can you not update the records in Trigger.new directly inside an after trigger?
- How do you stop a trigger from running more than once on the same record (recursion)?
Flows and Automation questions
- What is the difference between a before-save and an after-save record-triggered Flow?
- When would you choose Flow over Apex?
- How do you handle errors in a Flow using fault paths?
General and experience questions
- How do you decide between a declarative and a programmatic solution?
- Which best practices do you follow in Apex and LWC?
- How do you handle code reviews and technical debt on your team?
Concepts to Revise
Based on the questions on this page, these are the areas most worth revising.
Apex
- Governor limits for SOQL, DML, CPU time and heap size
- Bulkification: no SOQL or DML inside loops
- Sharing keywords and how they affect record access
- Asynchronous Apex: future, queueable, batch and schedulable
- Test classes: test data, System.assert, Test.startTest and Test.stopTest
- Collections and wrapper classes
Lightning Web Components
- Lifecycle hooks: constructor, connectedCallback, renderedCallback, disconnectedCallback
- Decorators: @api, @track, @wire and when each is needed
- Parent to child and child to parent communication using properties and custom events
- Lightning Data Service and the uiRecordApi functions
- Calling Apex: wire versus imperative, and cacheable methods
- Template directives: if:true, for:each, key and lwc:if
Triggers
- Context variables: isBefore, isAfter, isInsert, isUpdate, isDelete, isUndelete
- Trigger.new, Trigger.old, Trigger.newMap and Trigger.oldMap, and in which events each exists
- One trigger per object with a handler class
- Preventing recursion with static variables
- addError to block a save with a message
- Testing triggers with single and bulk records
How to Prepare
The questions on this page lean towards Apex, Lightning Web Components and Triggers. Spend most of your revision time there, then cover the remaining topics lightly.
- Practise explaining governor limits and bulkification with a real example from your own project.
- Build one small component that uses @wire, an imperative Apex call and a custom event, and be ready to explain each part.
- Write a trigger with a handler class from memory, then test it with 200 records to prove it is bulk safe.
- Say your answers out loud. Interviewers listen for clear, structured explanations, not memorised definitions.
- Prepare one or two real examples from your own projects for the general questions.
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